//	---------- 0/0               0 2014-05-13 09:53 file4
		file: "testdata/pax-global-records.tar",
		tests: []testFnc{
			testHeader{Header{
				Typeflag:   TypeXGlobalHeader,
				PAXRecords: map[string]string{"path": "global1", "mtime": "1500000000.0"},
			}, nil},
			testHeader{Header{
				Typeflag: TypeReg, Name: "file1",
			}, nil},
			testHeader{Header{

			paxHdrs[paxSize] = strconv.FormatInt(hdr.Size, 10)
			delete(paxHdrs, paxPath) // Recorded by paxGNUSparseName
		}
	*/
	_ = realSize

	// Write PAX records to the output.
	isGlobal := hdr.Typeflag == TypeXGlobalHeader
	if len(paxHdrs) > 0 || isGlobal {
		// Write each record to a buffer.
		var buf strings.Builder
		// Sort keys for deterministic ordering.
		for _, k := range slices.Sorted(maps.Keys(paxHdrs)) {